How remove background from Angular Material Tree

Issue

I've tried to remove the background of my material tree but nothing seems to actually be working.

I want to maintain the background image, the background image is from the mat-sidenav-container the library.component is rendered on the mat-sidenav-content.

library.component.scss

mat-tree-node {
    background-color: transparent !important;
}

Solution

Adding this to style.css should work.

.mat-tree {
    background-color: transparent !important;
}

Answered By - Joosep.P